Forces

Question 1

What is the unit of measurement of force?

Answer 1

Newtons

Question 2

What factors can forces change in object.

Answer 2

1. Speed
2. Direction
3. Shape

Question 3

What types of force are contact?

Answer 3

1. Friction
2. Upthrust
3. Air resistance
4. Thrust
5. Upthrust
6. Reaction

Question 4

What types of forces are non-contact?

Answer 4

1. Weight
2. magnetism
3. static electrical

Question 5

What is the definition of mass?

Answer 5

A measure of the number of atoms in an object (g). Mass is fixed, not affected by position.

Question 6

What is the definition of weight?

Answer 6

A force which pulls objects toward each other. Depends on distance and size of objects (N).

Question 7

What is the equation for weight?

Answer 7

Weight = mass x gravity
gravity = 10 N/g

Question 8

How do you calculate the
average speed on a graph?

Answer 8

Speed = distance (highest point on graph, horizontally to y axis) / time